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Nady [450]
2 years ago
9

What is the smallest degree of rotation that will map a regular 15-gon onto itself

Mathematics
1 answer:
olga55 [171]2 years ago
3 0

Answer:

13

Step-by-step explanation:

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Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada
oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

y = a*x + b

donde a es la pendiente y b es la ordenada al origen.

Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

y = -2*x + b

También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

-1 = -2*5 + b

-1 = -10 + b

-1 + 10 = b

9 = b

Entonces la ecuación de la recta es:

y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

donde k es la ordenada de este punto.

Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

7 0
3 years ago
2 1/2 + 3<br> As a fraction or a mixed number in simplest form. please Thankss ;p
puteri [66]
5 1/2 i think is the answer
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3 years ago
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5 square root 13^3. <br> A 13^2. <br> B 13^15 <br> C 13^5/3. <br> D 13^3/5
arlik [135]
Answer is D.

When you have an exponent that is a fraction, the denominator is the number you root the base by. In this case the exponent is 3/5, so you fifth root 13 cubed.
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June is working on an addition problem and starts with 17,985. After she adds, she still has 17,985. Which property of addition
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Answer:

addition

Step-by-step explanation:

idkthis sounds dumb

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3 years ago
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The table shows the ratio of cups of white flower to cups in millie’s pancake recipe
mezya [45]

Answer:

The selected graph is correct

Step-by-step explanation:

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3 years ago
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